cmd-bat批处理命令延时方法



批处理延时启动的几个方法

 

方法一:ping

缺点:时间精度为1秒,不够精确

@echo off 

@ping 127.0.0.1 -n 6 >nul 

start gdh.txt

方法二:vbs start /wait

缺点:生成临时文件

有点:时间精度为0.001秒,精度高

@echo off 

echo wscript.sleep 5000>sleep.vbs 

start /wait sleep.vbs 

start gdh.txt 

del /f /s /q sleep.vbs

方法三:vbs cscript

@echo off 
echo wscript.sleep 5000>sleep.vbs 
@cscript sleep.vbs >nul 
start gdh.txt 
del /f /s /q sleep.vbs

方法四:choice

优点:时间精确,CPU占用低,是最佳选择

@echo off 
choice /t 5 /d y /n >nul 
start gdh.txt

方法五:for+set+if,时间精度为0.01秒

缺点:CPU占用高,语句过长,不常用

@echo off 

setlocal enableextensions 

echo %time% 
call :ProcDelay 500 
echo %time% 
start gdh.txt 
:ProcDelay delayMSec_ 
setlocal enableextensions 
for /f "tokens=1-4 delims=:. " %%h in ("%time%") do set start_=%%h%%i%%j%%k 
:_procwaitloop 
for /f "tokens=1-4 delims=:. " %%h in ("%time%") do set now_=%%h%%i%%j%%k 
set /a diff_=%now_%-%start_% 
if %diff_% LSS %1 goto _procwaitloop 
endlocal & goto :EOF

转载地址:http://blog.163.com/cb_dt/blog/static/481041420090322011317/?latestBlog


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